Primitive Technology: Wood Ash Insulated Furnace
AdultsConstructionCreativityNature...I made a furnace insulated with wood ash to smelt iron in. Furnace insulation stops heat being lost from the walls of a furnace and so increases the heat within the furnace.
The Figure 8 Knot Has Never Failed. Why?
AdultsConstructionEducationPhysics...Modern roped rock climbing, one of the nerdiest sports, relies almost entirely on a single type of knot for safety: the figure eight knot.
The Weight of “Nothing” Could Mean Everything (to Physics)
AdultsLifePsychologyScience...Deep in a Sardinian mine, researchers are constructing an experiment that hopes to solve what's known as The Worst Prediction In The History of Physics, and pin down the true identity of dark energy.
Bear Grylls shows Bradley Cooper how to cross a ravine | Running Wild with Bear Grylls
AdultsEnvironmentLifeNature...Bear Grylls teaches Bradley Cooper how to cross a ravine. In Running Wild with Bear Grylls, Bear is taking it up a level by teaching his celebrity guests essential survival skills that they'll have to master and then prove they can use in a high stress situation.
The First-Ever Cargo Ship Powered By Green Fuel | Morten Bo Christiansen | TED
AdultsEducationEnvironmentTechnology...The shipping industry is vital to the global economy, but it's also a huge contributor to the climate crisis.
Titan Implosion Explained with a Soda Can
AdultsEducationMediaScience...On June 18th, 2023, OceanGate’s Titan submersible imploded near the wreck of the Titanic. Why? This simple experiment that you can do at home demonstrates the terrifying power of the ocean that ultimately ended Titan’s expedition.
How to enter flow state
AdultsHumanPsychologyScience...Explore the defining features of being in a flow state, and get tips on how you can find flow in your daily life.